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Application of magnetite tailings in cement production

Utilization of tailings in cement and concrete: A review

The aim of this review is to re-assess the potential utilization of tailings for cement clinker production and the opportunities and challenges of using tailings as …

Synthesis of magnetite powder from iron ore tailings

Iron ore tailing—a waste material of mineral beneficiation plants, is used as a source of iron for synthesizing magnetite powder. Iron ore tailings containing 15.98% Fe2O3, 83.36% SiO2 and 0.44% ...

Transforming Mining Waste to Wealth: A Novel Process for …

Rapid economic development and increased demand for mineral products in China have led to extensive extraction of various ores, resulting in significant environmental challenges associated with the generation of industrial solid waste, particularly iron tailings. Despite being a major mining nation, China faces issues of wasteful practices, with …

Process effluents and mine tailings: sources, effects and

Increasing population levels, growing economies, rapid urbanization and changes in consumption patterns have increased the demand for raw materials such as base and precious metals, leading to growing concerns regarding their availability and the global efficiency of the mine supply chain. Mine tailings, consisting of process effluents …

Experimental Study on the Performances of Cement Stabilized Iron …

With the rapid development of ferrous metallurgy, the production of iron tailings as waste after beneficiation is increasing. Due to the shortage of natural stone in road construction, iron ...

Sustainable reuse of magnesite mine tailings in cement …

This study explores the use of Magnesite Mine Tailings (MMT) as an admixture in cement stabilization of Expansive Soil (ES) to improve subgrade performance and reduce environmental impact. ... the amount of water required for the attainment of …

Case evaluation of structural strength improvement of …

The progressive increase in the rate of production of plastic bottles by the beverage and food industries in Nigeria has increased considerably over time, …

Utilization of iron tailings as aggregates in paving asphalt …

At present, researchers worldwide have conducted many studies on the utilization of tailings in asphalt mixture. Wang et al. (2016) investigated the application of magnetite tailings in asphalt mix. The findings suggested that the substitution of magnetite tailings for limestone aggregates improved asphalt mix's resistance to rutting.

Overall utilization of vanadium-titanium magnetite tailings …

Vanadium-titanium magnetite tailings (VTMT) are a common industrial waste in China, which are harmful to the environment and economic development.

Mechanical activated waste magnetite tailing as pozzolanic …

1. Introduction. Tailings are solid waste materials produced during the process of ore mining. The disposal of tailings is a major environmental issue that arises from the process of mineral exploration [1], [2].The increasing demand for mineral resources has resulted in a rapid increase in the production of tailings [3].However, the …

Concrete Made with Iron Ore Tailings as a Fine …

concrete made from abandoned iron ore tailings in Iraq, and the findings showed that it performed better than regular concrete and displayed greater compressive strength and …

CN111302679A

The invention belongs to the technical field of comprehensive utilization of mineral resources, and particularly relates to a cement admixture containing vanadium titano-magnetite tailings, a preparation method and application thereof, wherein the cement admixture comprises the following components: vanadium titano-magnetite tailings, …

Activation of hydration properties of iron ore tailings and …

The studies of the effects of mechanical activation on the pozzolanic activity of mine tailings can provide a theoretical basis for the application of tailings as SCMs in cement. For promoting the resources circulation and sustainable development of economy, the effects of mechanical activation on the reactivity of tailings or mining wastes ...

Compressive strength, durability, and resilient modulus of …

IOTs stabilization using Portland cement is confirmed for enhancing the mechanical properties of the materials [29], [34], [35], immobilizing heavy metals [36], and …

Magnetite recovery from copper tailings increases arsenic …

The application of biochar in water treatment can reduce the burden on market for the production and application of expensive adsorbents and hence, the agro-waste-based green adsorbent (biochar ...

Effects of spodumene flotation tailings as aggregates on …

This work explored the use of spodumene flotation tailings (SFT) as an aggregate used in cement mortar to mitigate their environmental impact. The principal phase compositions of SFT were quartz (Qtz), feldspar (Fsp) and muscovite (Ms). So, the effects of variations in the particle size of Qtz, and mineral additives, Ms and Fsp, on the …

Recycling of iron ore tailings into magnetic nanoparticles …

Iron ore tailing is a major solid waste requiring advanced recycling methods because ore tailing powder is polluting air and water resources. For instance, about 300 million tons of tailings are disposed yearly in 1229 iron ore tailings dams in the Hebei province in China. Iron ore tailings can be recycled as functional materials because these tailings are …

Approach to the management of gold ore tailings via its application …

DOI: 10.1016/j.jclepro.2020.122303 Corpus ID: 219738673; Approach to the management of gold ore tailings via its application in cement production @article{Wang2020ApproachTT, title={Approach to the management of gold ore tailings via its application in cement production}, author={Qiang Wang and Jingjing Li and …

From Waste to Wealth: Current Advances in Recycling

The burgeoning accumulation of vanadium-titanium magnetite tailings (VTMT) presents a dual challenge of environmental hazard and loss of valuable metal resources. This review arrives at a crucial juncture in global efforts towards a circular economy, focusing on innovative and effective metal recovery technologies. We explore …

Stabilization of iron ore tailings with cement and bentonite: …

A comprehensive series of compaction and uniaxial compression tests was performed on mixtures of cement/bentonite and tailings. Test results reveal that the …

Transformation of mine tailings into cement-bound …

Typical mixtures have a solid content of 70–80 wt% (30–20 wt% of water), of which 3–10 wt% is Portland cement (97–90 wt% of tailings). An extensive amount of recent scientific literature aims for a higher added value valorization of tailings in applications offsite from the mine (Edraki et al., 2014; Park et al., 2019). The two main ...

A review on complex utilization of mine tailings: Recovery of …

Historically, safe containment has been the main goal of tailings management. Disposal has taken place in sizable surface impoundments that are enclosed by dams or embankments, as well as in subterranean workings and unnatural depressions [10], [11].However, the environment and communities are seriously endangered by the …

Application of calcareous iron ore tailings in the production of cement

The results showed that the clinker phases were C 3 S, C 2 S, C 3 A, and C 4 AF, and the cement hydration products were claviform ettringite, granular C-S-H gels, and flaky Ca(OH) 2. In addition, the maximum amount of IOTs added for a 52.5 grade cement production was 6 wt.%.

Magnetite

Current magnetite production is a by-product of the copper operations and as such is recovered from the Concentrator floatation tails stream by magnetic separation. Approximately 15%, by weight, of magnetite is removed by 'cleaning' and 're-cleaning' of the magnetic concentrate from the first stage.

Manufacture of tailings-based cementitious materials: …

Focuses on the application of mechanical, thermal, chemical and coupled activation technologies in tailings processing. Elucidating how activation technology can …

Approach to the management of gold ore tailings via its application …

Gold ore tailings can be used as a siliceous raw material for cement production. • The cement phases are 3CaO·SiO 2, 2CaO·SiO 2, 3CaO·Al 2 O 3, and 4CaO·Al 2 O 3 ·Fe 2 O 3. • The hydration products are portlandite, calcium silicate hydrate, and ettringite. • The optimum addition of gold ore tailings in cement production is 5 wt ...

Application of cement treated magnesite mine tailings as …

During the field application, the ultra-fine tailings and PC32.5 cement were mixed with the cement-tailings ratios of 1:3–1:8, and the slurry concentration of 50 wt% was prepared.

Utilization of magnetite tailings as aggregates in asphalt …

Tests show that with an increase in substitution rate of cement in the tailings, the compressive strength of concrete tends to decrease, and when the substitution rate is at 10%, 20% and 30% ...

Approach to the management of gold ore tailings via its application …

Gold ore tailings can be used as a siliceous raw material for cement production. • The cement phases are 3CaO·SiO 2, 2CaO·SiO 2, 3CaO·Al 2 O 3, and 4CaO·Al 2 O 3 ·Fe 2 O 3.. The hydration products are …

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